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Inspired by the FAPD 5101 navigator's watch issued to U.S. Air Force crews around 1970, the Hamilton Khaki Field Mechanical 36mm faithfully revives the rugged simplicity of a true military tool watch. Designed for durability and legibility, this special edition captures the authentic spirit of Hamilton's military heritage while incorporating modern reliability.
True to the original specifications, the watch features a matte stainless steel case, fixed strap bars, acrylic box crystal, and a khaki cotton NATO strap for an unmistakably vintage field-watch aesthetic. Enhanced with Super-LumiNova® Grade X2 for exceptional low-light visibility, a Nivachron™ balance spring for increased resistance to magnetic fields, and a protective dust cover, it delivers dependable performance for everyday wear.
Powering the watch is Hamilton's hand-wound H-50 mechanical movement, offering an impressive 80-hour power reserve. Produced exclusively for 2026, this special edition is a fitting tribute to Hamilton's long-standing history of supplying precision timepieces for military service.
| Specification | Details |
|---|---|
| Reference | H69399930 |
| Collection | Khaki Field |
| Movement | Mechanical (Hand-Wound) |
| Caliber | H-50 |
| Case Size | 36mm |
| Case Thickness | 10.2mm |
| Case Material | Stainless Steel |
| Dial Color | Black |
| Crystal | Acrylic Box Crystal |
| Lug-to-Lug | 46mm |
| Lug Width | 18mm |
| Power Reserve | 80 Hours |
| Water Resistance | 10 bar (100m / 330ft) |
| Nivachron™ Balance Spring | Yes |
| Super-LumiNova® Grade X2 | Yes |
| Strap | Khaki Textile NATO Strap |
| Strap Reference | H6000002601 |
| Buckle Type | Pin Buckle |
| Buckle Width | 18mm |
| Status | Current Collection (2026 Special Edition) |
The Hamilton H-50 is an exclusive hand-wound mechanical caliber developed specifically for Hamilton's manual-winding watches. Offering an extended 80-hour power reserve, it delivers reliable performance even after several days off the wrist. Combined with a Nivachron™ balance spring, the H-50 provides enhanced resistance to magnetic fields and everyday shocks while preserving the engaging experience of traditional hand-wound watchmaking.